Gauge for angles



Nov. 4 1924. 1,514,452

F. FREDERICKSON ET AL 0 GAUGE FOR ANGLES mm sways. 19:0

ammo z Ffiedgrichsolu D. E Tuscher,

Patented Nov. 4, 1924.

NETE STATES PATENT sic.

FRED FREDERICKSON AND DENNIS E. TISCHER, OF OGDEN, AND JOHN S. FORSGREN, OF BRIG-HAM CITY, UTAH.

GAUGE FOR ANGLES.

Application filed September To all whom it may concern:

Be it known that we, Finn) FREDnRIoKsoN, DENNIS E. Trsonnn, and JOHN S. Fons- GREN, citizens of the United States, said Fnnonnroasox and Trsormn residing at Ogden, in the county of Veber and State of Utah, and said FoRsoREN residing at Brigham City, in the county of Box Elder and State of Utah, have invented certain new and useful Improvements in Gauges for Angles, of which the following is a specificatlon.

This invention relates to gauges for angles at which crank pins and other pivots are set, and the object of the same is to provide a centering pin at one end of a bar at whose other end are adjustable arms to engage the crank pin of the first wheel, and a spirit level carried by a revolving ring in a protractor that may be set at an angle of ninety degrees for the pin of the second wheel.

These and other objects and details of the invention are more fully described in the following specification, set forth in the appended claims and illustrated in the accompanying drawings wherein:

Figure 1 is a face View of the improved gauge.

Fig. 2 is an edge view of the same.

Fig. 3 is a face view of a slightly modified form of open ring member, and

Fig. 4 is an edge View thereof.

Fig. 5 is a detail cross sectional view through one side of the scale rings.

The device is adapted to be centered on a driving wheel by one of the tapered pins 5 carried at the outer end of a rod 6 that telescopes in the hollow bar 7 and is scaled as at 8, and the two members secured together by means of the thumb screw 9.

At the outer end of the bar 7 is a cross bar 10, also scaled at one end and carrying sliding blocks 11, from which extend arms 12 that comprise a jaw, and at one end of the bar 10 is a bracket 13, in which is swivelled the screw 14, journalled in the extremity of bar 7, and whose threads are reversed where they play through the two blocks 11.

A milled head 15 is provided to operate the screw and cause the arms to approach or recede from each other and by this means the arms are made to embrace the crank pin 9, 1920. Serial No. 409,179.

at each side so that the bar 7 and rod 6 form an exact radial line between the centres of the wheel and the pin.

\Vhile in this position a spirit level 16 is brought to the horizontal.

The level 1.6 is carried by a ring 17 that is adapted to rotate in a vertical plane in an outer ring 18 that is attached to the bar 7 and set-screws 19 play in the latter ring to lock the two rings together. The ring 17 is scaled as at 20, either wholly or in part of its circumference, and is flanged and retained within the ring 18 by means of an annular plate 21 that fits over the flange on the outer edge of ring 17 and is secured to the ring 18 by one or more pins or screws 22 fitting in holes 23. Freedom for rotation is thus afforded the ring 17 until secured by the screws 19.

After the gauge is therefore set as above described; the ring 21 is advanced or rotated exactly ninety degrees, or any number of degrees that it is desired to set the other crank pin from the first. The spirit level 16 is also advanced to the new ninetydegree point, and the whole device swung around on thepivot 5, after removing the jaws or arms 12 from the pin, until the liquid in the level indicates the horizontal, when the arms Will be in position for the other pin.

While the scale shown on the rings is in quadrants only, it may be extended to any desired degree, but the former amount will be preferable for sake of illustration, and the spirit level is not shown as being in any preferable position, but as being ready to be set in the horizontal position for the first reading.

The rod 6 and bar 7 may be accurately adjusted so that the distance between the pivot point 5 and the head of the bar 7, or the edge of the crank pin, noted and the same used to secure the position of the companion p The cross bar 10 audits scale may also be used to accurately ascertain the diameter of the crank pin originally treated and com parisons made with the second pin.

Instead of making the two rings rotatable, it is evident that the ring carrying the spirit level only need move so that after the first reading and positioning is made the level only may be moved over the 90 degrees scale so that the second setting may be used to properly locate the second pin,

It is obvious that other changes and modifications of the device and its parts may be made without departing from the essential features above described or from the scope of the appended claims.

The modified form of my invention shown in Figures 3 and 4, consists of a mounting hub 25, a cross bar 24, supporting the ring 17, which is retained by ring 21,, which is mounted in ring. 1E5, and this structure operates in the same manner as that shown in Figures 1 and 2.

' hat we claim as new is:

1. In a gauge, the combination of a bar having a centering pin, a transverse bar at the end of said first 'bar, adjustable jaws on the transverse bar, an adjustable scale carried by the first mentioned bar, and a spirit level on the adjustablescales.

2-. In a gauge, the combination of a bar having a centering pin at one end, a transverse bar at the other end of said first men tioned bar, adjustable jaws carried by the transverse bar, scale members adjustable with relation to each other and carried by the first bar, and a spirit level carried by one of the scale members.

3. In a gauge the combination of a telescope bar having a centering pin in one end and adjustable jaws at the other, a station ary ring carried by the bar and having a scale, a rotating ring within the first ring and having a co-operating scale, and leveling means carried by the rotating ring.

at. In a gauge, the combination of a telescope bar carrying, a centering pin, adjustable jaws at the end opposite the pin, a ring carried by the bar, a rotatable ring within the first ring and a spirit level carried by the rotatable ring.

5; In a gauge, the combination of a telescope bar carrying a centering pin at one end, adjustable jaws at the other end of the bar, a ring secured to the bar, rotatable vertical ring secured within the inner edge of the first ring, and a spirit level carried by the second ring.

6. In agauge, the combination of a hollow bar, a rod adapted to telescope in the bar, a centering pin carried at the outer end of the rod, a binding screw for the said rod, a transverse bar at the opposite end. {of the first bar from the rod, sliding jaws on the transverse bar, a screw journalled in the transverse bar and adapted to adjust the sliding jaws, a ring carried by the first men tioned bar and having a scale, a second ring having a scale and adapted to rotate in the first ring, and a spirit level carried by the second ring.

7. In a gauge, the combination of a bar, a rod adapted to telescope in the same and having a scale, a binding screw to secure the rod and bar together, a cross-bar with a scale at the outer end of the bar, a swivelled screw carried by the cross bar, jaws sliding on the cross bar and adjustable by the screw, a ring secured to the bar, a rotatable ring within the inner edge of the first ring, an annular retaining plate for the rotatable ring and secured tothe first ring, scales on the ring and adapted to coincide, screws adapted to lock the rings together, and a spirit level attached to the rotatable ring,

In testimony whereof we afiix our signatures.

' FRED FBEDERICKSON.

DENNIS E. TISCHER'. JOHN S. FQ-RSGREN. 

